| A new technique of combining accretion by cyclone separator and scattertube for tailings dams |
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| 作者姓名： | 柳厚祥 李宁 廖雪 龚锦林 方风华 |
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| 作者单位： | [1]InstituteofGeotechnicalEngineering,ChangshaUniversityofScienceandTechnology,Changsha410076,China [2]InstituteofGeotechnicalEngineering,Xi＇anUniversityofTechnology,Xi＇an710048,China [3]CommunicationsDepartmentofHunanProvince,Changsha410011,China |
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| 摘 要： | A new technique of combining accretion by cyclone separator and scattertube for tailings dams was devel-oped according to laboratory experiment, model experiment and spot experiment technology. Three tailings dams were successfully constructed by the new technique. The results of engineering geological exploration, static and dy-namic test and stability analysis on Baizhishan tailings dams prove that the new technique improves structure and sta-bility of the dams and working conditions compared with the traditional technique. The thin layers of fine-grained soils are greatly reduced, fine tailings sand is solid to make the dam stable and seepage conditions are well improved,the immersing line of the dam descends. In addition, the stability and liquefaction resistance of tailings dams are strengthened remarkably. The interior stress is compressive stress, stress level of every element is less than 1.0 and safety coefficient of every element is greater than 1.0. The safety coefficient against liquefaction of every element of tailings dams is greater than 1.5 according to the analysis of seismic response by finite element method.
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| 关 键 词： | 土动力学 地基 土质 综合增长 旋风分离器 |
| 收稿时间： | 20 August 2003 |
| 修稿时间： | 29 October 2003 |
A new technique of combining accretion by cyclone separator and scattertube for tailings dams |
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| Liu Hou-xiang , Li Ning , Liao Xue , Gong Jin-lin and Fang Feng-hua.A new technique of combining accretion by cyclone separator and scattertube for tailings dams[J].Journal of Central South University of Technology,2004,11(2):185-191. |
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| Authors: | Liu Hou-xiang Li Ning Liao Xue Gong Jin-lin and Fang Feng-hua |
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| Affiliation: | (1) Institute of Geotechnical Engineering, Changsha University of Science and Technology, 410076 Changsha, China;(2) Institute of Geotechnical Engineering, Xi’an University of Technology, 710048 Xi’an, China;(3) Communications Department of Hunan Province, 410011 Changsha, China |
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| Abstract: | A new technique of combining accretion by cyclone separator and scattertube for tailings dams was developed according to laboratory experiment, model experiment and spot experiment technology. Three tailings dams were successfully constructed by the new technique. The results of engineering geological exploration, static and dynamic test and stability analysis on Baizhishan tailings dams prove that the new technique improves structure and stability of the dams and working conditions compared with the traditional technique. The thin layers of fine-grained soils are greatly reduced, fine tailings sand is solid to make the dam stable and seepage conditions are well improved; the immersing line of the dam descends. In addition, the stability and liquefaction resistance of tailings dams are strengthened remarkably. The interior stress is compressive stress, stress level of every element is less than 1.0 and safety coefficient of every element is greater than 1.0. The safety coefficient against liquefaction of every element of tailings dams is greater than 1.5 according to the analysis of seismic response by finite element method. |
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| Keywords: | tailings dams combining accretion cyclone separator scattertube upstream raising method |
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